Proportional dividers.



N0. 875,783. `Pmlvfln JAN. '7, '1903. N. 06TH.

PROPORTIUNAL DIVIDERS.

APPLIUATION FILED APB.B,1907.

Witnesses: @ggg/ton /MW Attoreys minced, thronffh the slot l l.

Meere-.on coiffe,

MONTREAL, QUEBEC, CANADA.

FRQPRTIUNAL DVIDERS.

Specification of Lettere Patent.

Patented Jan. 7, 1908.

Application led ,'lprl 8, 1907. Serial Ho. 367.130.

To ett 'whom t may; comici-n:

Be it known that l., NAroLiioN CT, e subject of the King of' Greet Britain, residing at the city and diswict of Montreal, in the Province of Quebec, Genade, here invented certain new and, useful Improvements in Proportional Dividers; and l.' do hereby' de# claro that the followiing is e full, Cloer, end exact description of the invention, such r:is will enable others skilled in the crt to which it appertains to make ond, use the seine.

My invention relates to propo; ionei di viders; the object of my invention. to provide :t simple device adapted to indicate without calculation on. the part ot' he operotor the size of' measured ports when the proportion oi inoreese or decrease of a, corresponding wart is known, so that the parte of the construction. may be increased or decreased in propomion Without having to Work ont mathematically euch proportion; and, roy invention consists of the construction., coniliii'isttion and treurige-.meint of parte'. as herein illustrated, described and claimed.

In the eccon'ipenying drawings, iorniiig port of this rippliciition, have 'llesti'eted one- Form of embodiment ci' my invention, in which drawings simiier reference .'l'ifnncters indieete corresponding parte, ond in which:

Figure l is o, ilzm View; and, Fig is en edge elmfotion, per tlf broken sway.

Referring to the drawings, i designates e bese preferably ci moteliic construction. Formed or indicated on the bese o, loose line 3, pe'rnllol to one edge et the hose. Se cnrod 'Ion the lmsc l. is :i stop stri1o4,li-=noscd with. its straight odge et en ongle c.".."orty five degrees to the beso line An indiceting strip 5 is pivotcd it 6 on the oase line 3, and is free to anfing; in the ero of n circle from its )i't'otel groin' A Tsinntre 7 is adapted to he moved over thc sinifnco of thc hase l, `mid is provided with o. scale 8, commencing nt e point ooinciding with the has@ line I. llt will be 'understood that any other moans than n T-sqnoro having c scale thereon cornnicncing; it thc beso line 3, nicyhonsed, :md this incinhor may he permencnl mointeined on the hose ly ongles to scid bese line. disposed on hf "t if), the lett fi thumb nist is oi which is d in the through the troc end ol' the indie'foting i UHC,

.l so that it nos et right he when on the ecole 3, :ind the the straight edge of the strip 5 is made to n such nice-surement when the seele 8 registers. with the straight edge of the strip et fr., leiht cirresoonding to the i1`icrease which is to he mede of the measured ort. 'ihet is to eey, il a part five inches in ength is to be increased to seven inches in length, the socle will bese I until the 7 ci the seele coincides with the streieght odge of the strip 4, land the indicating; strip 5 wiil 'oc inoved to coincide with the merli indicating 5' on sind scale, and the indicating strip will then lio locked in position. my measurement of any other part of the construction to be enlarged will point indicnted on the scade by such measurement will he inode to coincide '-.vitli the straight edge of the indient/nig,y strip 5. 'lhe point indicated on. the seele hy the straight edge of the stop strip 4 will indicate the length in inches, or otlier units, of increase. Nhen n construction is to he reduced, theI reverse of this opera-tion takes Vplace., in' tlnit e part is measured, end such measurement :is indicoto-.d on .,hc scalo S is hroiight to coincido with the straight edge of the sten drip The indicating strip is then move( Lo ctncide with the increase and locked in position. M'cesurenients of different ports nrc token and conseil to coincide with the stop strip 4, sind the reduction is indicated by the straight odge of the strin 5.

lfl'evinig thus 'nlly described my invention,

coincid e Wit Whitt l claim ns new, :md desire to secure by Letters Potent, is:

l. In en instrument or the character dci scribed, et hose, n stop strip rigidly'v secured thereto, e hose lino extending along one edge of said misc strip, :i member shdahlv mountcd on seid huso inemhcr, :i scale on the slidlmsc l nhl# mendicioxondine; at right angles to said hase line, ein indicating' strip pivotcd nd- 'oe moved on the.

jacent one end of said base line, and means for guiding and locking said strip in any ad* justed position:

2. In a'n instrument of the character de scribed, a base a stopA strip rigidly secured thereto, 4a base line extendin along one edge of said base strip, a members 'dabl mounted on said base member, a scale on t eslidable member extending at right angles to said. base line, an indicating strip pivoted adjacent one end of said base line, and means for guiding land locking said` strip in any adjusted position, said means comprising a slot extendingl through the base member and a bolt attached to the outer end of the indicatiiig strip and playing through said slot.l

3. In an instrument .of the character de- I scribed, a base, a stop strip rigidly secured thereto, a base line extending along one ed'ge of saidbase strip, a member slidably mounted on said base member, a scale on theslidable member extending at right angles to said base line, an indicating strip ivoted adjacent one end of said base line, an( means for guiding and locking said strip in any adj usted position, said means comprising a slot extending through the base member and a ,bolt attached to the outer end of the indicatthumb nut on said bolt'for lookiivfir the parts in ad'usted position.

4. n an instrument of the character described, a base member, a stop strip rigidly secured thereto, a base line on said base member, a movable scale intersecting said base line, aiiindicating strip pivot-ed adja-A cent one end of said baseline and coo erating with said scale, and means for gui ing said strip and for locking thesame in any adi justed position, said means comprising a-slot extending through said"base member and ing strip' and playing through said slot and a.

communicating with a 'channel in said base member, a bolt playing through said slot and provided with a head traversing the aforesaid channel, said bolt likewise being attached to the aforesaid indicating arm, and

l a thumb mit adapted to screw upon the I outer end of said bolt to thereby clamp the parts in adjusted position.

In witness whereof l have hereunto set my hand in the presence of two witnesses` NAPoiiiloN corn.

Vitiiesses: K

C. C. Cousins, E.' M. SLINEY. i 

